fix dictDelta setting error

wrong test

diff --git a/lib/lz4.c b/lib/lz4.c
index c799596..e7553ed 100644 (file)
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -637,7 +637,7 @@ LZ4_FORCE_INLINE int LZ4_compress_generic(
         dictDirective == usingDictCtx ? dictCtx->dictionary : cctx->dictionary;
     const U32 dictSize =
         dictDirective == usingDictCtx ? dictCtx->dictSize : cctx->dictSize;
-    const U32 dictDelta = usingDictCtx ? startIndex - dictCtx->currentOffset : 0;   /* make indexes in dictCtx comparable with index in current context */
+    const U32 dictDelta = (dictDirective == usingDictCtx) ? startIndex - dictCtx->currentOffset : 0;   /* make indexes in dictCtx comparable with index in current context */
 
     int const maybe_extMem = (dictDirective == usingExtDict) || (dictDirective == usingDictCtx);
     U32 const prefixIdxLimit = startIndex - dictSize;   /* used when dictDirective == dictSmall */